JPS6114971B2 - - Google Patents
Info
- Publication number
- JPS6114971B2 JPS6114971B2 JP14964377A JP14964377A JPS6114971B2 JP S6114971 B2 JPS6114971 B2 JP S6114971B2 JP 14964377 A JP14964377 A JP 14964377A JP 14964377 A JP14964377 A JP 14964377A JP S6114971 B2 JPS6114971 B2 JP S6114971B2
- Authority
- JP
- Japan
- Prior art keywords
- molding
- bumper
- molding body
- decorative
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000465 moulding Methods 0.000 claims description 68
- 239000012778 molding material Substances 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 description 8
- 239000000057 synthetic resin Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 239000013013 elastic material Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Description
【発明の詳細な説明】
この発明は、装飾モールを装着した自動車用弾
性バンパの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing an elastic bumper for an automobile equipped with a decorative molding.
近来、自動車用バンパとしての緩衝性能の良好
さ、および衝撃後の復元性ならびに他物に対する
安全性等の観点から、従来の金属製バンパに代つ
て、ゴム又は合成樹脂等の弾性体からなる弾性バ
ンパが用いられるようになつてきた。この弾性バ
ンパは、ゴム又は合成樹脂等の材質より構成され
るものであるから、従来の金属製バンパのような
金属調の外観は望むべくもなく、しかるにこの種
弾性バンパの表面に、金属箔又は金属蒸着層等の
化粧面を有する装飾モール体を装着することが提
案されている。ところで、この弾性バンパ表面へ
の装飾モール体の装着方法としては、例えば弾性
バンパ表面に設けた凹部に該モール体を嵌着する
もの、あるいは弾性バンパ表面に接着剤によつて
モール体を接着するもの、又は弾性バンパの成形
型内に了めモール体を設置しておき、弾性バンパ
の成形と一体に装着する、いわゆる型内一体成形
方法等が提案されている。このうち、上述した型
内一体成形による方法は、他の方法に比し工程的
に簡略であり、かつモール体がバンパ本体に埋設
されるので一体感があつて、この種バンパへの装
着方法としては優れており、その効果が期待され
るのであるが、この型内一体成形の場合において
は、第一に成形時におけるゴム又は合成樹脂等の
成形材料の流れの方向によつてモール体の位置ず
れが生ずるおそれがあり、第二にモール体の化粧
面に成形材料が回り込み、付着し、化粧面が汚損
されるという致命的な技術的問題が残されていた
のである。 In recent years, from the viewpoint of good cushioning performance as automobile bumpers, resilience after impact, and safety against other objects, elastic materials made of elastic materials such as rubber or synthetic resin have been used instead of conventional metal bumpers. Bumpers have come into use. Since this elastic bumper is made of a material such as rubber or synthetic resin, it cannot have the metallic appearance of conventional metal bumpers. Alternatively, it has been proposed to attach a decorative molding body having a decorative surface such as a metal vapor deposited layer. By the way, methods for attaching the decorative molding body to the surface of this elastic bumper include, for example, fitting the molding body into a recess provided on the surface of the elastic bumper, or bonding the molding body to the surface of the elastic bumper with an adhesive. A so-called in-mold integral molding method has been proposed, in which a molding body is installed in a mold for forming a bumper or an elastic bumper, and is attached integrally with the molding of the elastic bumper. Among these methods, the above-mentioned in-mold integral molding method is simpler in terms of process than other methods, and since the molding body is embedded in the bumper body, it creates a sense of unity, and is a method for mounting on this type of bumper. However, in the case of this in-mold integral molding, firstly, the molding body is affected by the flow direction of the molding material such as rubber or synthetic resin during molding. There was a risk of misalignment, and secondly, the molding material would wrap around and adhere to the decorative surface of the molding body, resulting in staining of the decorative surface, which was a fatal technical problem.
この発明は、上述したような型内一体成形にお
ける技術的問題を解決せんとして提案されたもの
であつて、その要旨とするところは、弾性バンパ
の成形型の一方の型面に前部に化粧面を備えた装
飾モール体の少なくとも前部を嵌合または挾持す
る固定溝を設け、他方の型面には前記装飾体の背
面を押圧する押圧部を突設して、前記固定溝およ
び押圧部によつて前記モール体を固定保持した
後、型内に成形材料を注入して前記装飾モール体
を一体に埋設したバンパを成形することによつ
て、モール体の位置ぎめを正確になし、同時にモ
ール体の化粧面側への成形材料の回り込みを防止
し、化粧面の保護をなすことにその特徴を有す
る。 This invention was proposed to solve the technical problem in integral molding as described above, and its gist is that a decorative part is attached to the front part of one mold surface of an elastic bumper mold. A fixing groove that fits or clamps at least the front part of a decorative mold body having a surface is provided, and a pressing part that presses the back surface of the decorative mold body is protruded from the other mold surface, and the fixing groove and the pressing part are provided. After fixing and holding the molding body with a mold, a molding material is injected into the mold to form a bumper in which the decorative molding body is embedded integrally, thereby accurately positioning the molding body, and at the same time Its feature is that it prevents the molding material from going around to the decorative surface side of the molding body and protects the decorative surface.
以下、図面に従つてこの発明の実施例を説明す
る。第１図は、装飾モール体を装着した弾性バン
パ１の斜視図である。この弾性バンパ１の構造
は、図示しないが、車両側の支持フレームに緩衝
素子となる、例えば半硬質の合成樹脂発泡体を取
り付け、該緩衝素子を包被するように、もしくは
これと一体に弾性バンパが取り付けられたもの、
又は該緩衝素子の部分が空気室となつていて、空
気の弾性を緩衝効果に利用するもの等が知られて
いる。この発明において、弾性バンパ又はバンパ
本体とは、上述したようなバンパアセンブリの最
外装を形成し、バンパ形状を実質的に規定するゴ
ム又は合成樹脂からなる外装部分を指称する。 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an elastic bumper 1 equipped with a decorative molding body. Although not shown in the drawings, the structure of the elastic bumper 1 is such that a semi-rigid synthetic resin foam, which serves as a shock absorbing element, is attached to a support frame on the vehicle side, and an elastic material is formed so as to cover the shock absorbing element or integrally with the shock absorbing element. with a bumper attached,
Also known are devices in which a portion of the buffer element serves as an air chamber, and the elasticity of air is utilized for the buffering effect. In the present invention, the elastic bumper or bumper body refers to an exterior portion made of rubber or synthetic resin that forms the outermost exterior of the bumper assembly as described above and substantially defines the bumper shape.
装飾モール体２は、第２図に示すように、前部
の化粧面３と基体層４より構成されており、基体
層４は、通常型材といわれるものに用いられる各
種合成樹脂材料、例えば軟質塩化ビニール樹脂、
ゴム等よりなり、その上面側に金属箔又は金属蒸
着層等からなる化粧面３が形成されている。この
発明に用いられる装飾モール体２としては、図示
するような脚部２ａを有するものが望ましいが、
後述する固定溝１５に適合するものであればその
形状は問わない。 As shown in FIG. 2, the decorative molding body 2 is composed of a front decorative surface 3 and a base layer 4, and the base layer 4 is made of various synthetic resin materials commonly used for what is called a mold material, such as a soft material. vinyl chloride resin,
It is made of rubber or the like, and a decorative surface 3 made of metal foil, metal vapor deposition layer, etc. is formed on its upper surface side. The decorative molding body 2 used in this invention preferably has leg portions 2a as shown in the figure.
The shape does not matter as long as it fits into the fixing groove 15 described later.
第３図および第４図では、この発明の実施例を
示す。すなわち、弾性バンパの成形型の一方、実
施例では下型１０には、装飾モール体２を嵌合又
は挾持する固定溝１５が設けられている。この固
定溝１５は、バンパ本体表面に装着される装飾モ
ール体２の位置ぎめをすると同時に、弾性バンパ
の成形時において、ゴム又は合成樹脂等の成形材
料がモール体２表面の化粧面３に回り込まないよ
うにするためのものであるから、該モール体２の
側面に適合し、化粧面を含む前部を嵌合又は挾持
することが必要である。そのため固定溝１５の幅
は、モール体２の化粧面の幅Ｓと同一か又はそれ
よりやゝ小であることが望ましい。モール体２の
基体層４の材質やその断面形状により、モール体
側面に弾性がある場合には、その弾性を利用する
ことにより、固定溝１５の幅を小さくして挾持せ
しめることが可能であろう。しかしながら、本発
明にあつては、後述するように、固定溝１５と反
対側に設けた押圧部１６により該モール体２は、
押圧、固定されるので、この固定溝１５は、モー
ル体２の側端部から樹脂５が回り込まないような
構造となつていれば十分である。なお、固定溝１
５は、型内において、突出部１２，１２′を設け
ることにより形成してもよいし（第３図参照）、
又は型自体に凹溝を穿設することにより形成して
もよい（第４図参照）。これは、装飾モールを内
方に埋設したようにするか、あるいはバンパ外方
へ突出するように構成するかによつて決せられる
問題である。 3 and 4 show an embodiment of the invention. That is, one of the molds for the elastic bumper, the lower mold 10 in the embodiment, is provided with a fixing groove 15 into which the decorative molding body 2 is fitted or clamped. This fixing groove 15 positions the decorative molding body 2 attached to the surface of the bumper body, and at the same time prevents molding material such as rubber or synthetic resin from wrapping around the decorative surface 3 on the surface of the molding body 2 during molding of the elastic bumper. Therefore, it is necessary to fit the side surface of the molding body 2 and to fit or clamp the front part including the decorative surface. Therefore, it is desirable that the width of the fixing groove 15 is the same as the width S of the decorative surface of the molding body 2 or slightly smaller than that. If the side surface of the molding body has elasticity due to the material of the base layer 4 of the molding body 2 or its cross-sectional shape, by utilizing that elasticity, it is possible to reduce the width of the fixing groove 15 and clamp it. Dew. However, in the present invention, as will be described later, the molding body 2 is
Since it is pressed and fixed, it is sufficient that the fixing groove 15 has a structure that prevents the resin 5 from getting around from the side end of the molding body 2. In addition, fixing groove 1
5 may be formed by providing protrusions 12, 12' in the mold (see FIG. 3),
Alternatively, it may be formed by drilling grooves in the mold itself (see FIG. 4). This is a problem that depends on whether the decorative molding is buried inward or protrudes outward from the bumper.
次に、前記固定溝１５と反対側、すなわち上型
には、押圧部１６，１６′が設けられていて、モ
ール体２の背面を押圧する。なお、実施例に示す
ようにモール体２が脚部２ａを有するような構造
のものにあつては、その脚部を押圧することにな
る。この押圧部１６は、モール体２の長さ方向全
面を押圧するよう構成してもよいし、又部分的に
押圧してもよいが、モール体２を固定溝１５に嵌
合、固定せしめることが必要である。 Next, on the side opposite to the fixing groove 15, that is, on the upper mold, pressing parts 16, 16' are provided to press the back surface of the molding body 2. In addition, if the molding body 2 is structured to have a leg portion 2a as shown in the embodiment, the leg portion is pressed. This pressing portion 16 may be configured to press the entire lengthwise direction of the molding body 2 or may partially press the molding body 2, but it is not necessary to fit the molding body 2 into the fixing groove 15 and fix it. is necessary.
装飾モール体２が、型内の固定溝に固定される
とともに、バンパ本体１の成形がなされる。 The decorative molding body 2 is fixed in the fixing groove in the mold, and the bumper body 1 is formed.
図中５は、バンパ本体１を形成する樹脂等の成
形材料を示す。なお、この成形段階においては、
装飾モール体２とバンパ本体１とを固着しした構
造とするか、あるいはあえて固着しない構造とす
るかは随意である。すなわち、通常の場合、バン
パ本体１を形成する樹脂等の成形材料５とモール
体２とは、その接触面において、成形材料５の硬
化時の接着力により、バンパ本体と一体に固着し
た構造になる。一方、モール体２の成形材料５と
接触する部分全体に、パラフインワツクスやシリ
コンオイル等の離型効果を有する薬剤を塗布して
おくか、あるいは少なくとも成形材料５と接触す
る部分が同材料と非親和性の物質、例えばポリエ
チレン樹脂、ポリプロピレン樹脂、ポリフロロエ
チレン樹脂等で形成する等の離型手段を講ずるこ
とにより、成形時における両者の接着を妨げ、モ
ール体２が、滑動可能な状態を保持することも可
能である。換言すれば、バンパ本体１の成形後、
装飾モール体２は、バンパ本体１と嵌合状態にて
構成されることとなるのであるが、このように構
成することにより、バンパ本体１を形成する材質
とモール体２を形成する材質との熱膨張の相違か
らくる法変化の差異を、モール体２の滑動により
吸収することができ、又バンパ本体１への衝撃時
にも、モール体２に加わる応力の集中を防止する
ことができ、モール体２の亀裂、破壊を防止する
ための極めて効果的な手段となる。さらに取り外
し、交換も容易となる。 In the figure, 5 indicates a molding material such as resin that forms the bumper body 1. In addition, at this molding stage,
It is optional whether the decorative molding body 2 and the bumper body 1 are fixed to each other, or they are not fixed to each other. That is, in normal cases, the molding material 5 such as resin that forms the bumper body 1 and the molding body 2 have a structure in which the molding material 5 and the molding body 2 are integrally fixed to the bumper body at their contact surfaces due to the adhesive force of the molding material 5 when it hardens. Become. On the other hand, the entire part of the molding body 2 that comes into contact with the molding material 5 is coated with a drug that has a mold release effect, such as paraffin wax or silicone oil, or at least the part that comes into contact with the molding material 5 is made of the same material. By taking mold release means such as forming with an incompatible substance such as polyethylene resin, polypropylene resin, polyfluoroethylene resin, etc., adhesion between the two is prevented during molding, and the molding body 2 is kept in a slidable state. It is also possible to hold. In other words, after molding the bumper body 1,
The decorative molding body 2 is configured in a fitted state with the bumper body 1, and by configuring it in this way, the material forming the bumper body 1 and the material forming the molding body 2 are different. Differences in modulus due to differences in thermal expansion can be absorbed by the sliding motion of the molding body 2, and even when an impact is applied to the bumper body 1, concentration of stress on the molding body 2 can be prevented. This is an extremely effective means for preventing cracks and destruction of the body 2. Furthermore, it is easy to remove and replace.
上述したように、この発明に係る製造方法にあ
つては、バンパ成形型内の一方に設けた固定溝に
よつてモール体を嵌合又は挾持せしめ、他方に設
けた押圧部により該モール体の背面を押圧、固定
せしめるので、バンパ成形時におけるゴム又は合
成樹脂等の成形材料の流れによつてモール体の位
置ずれを生ずる懸念は全くなく、かつ該固定溝
は、モール体の化粧面の幅Ｓと同一又はやゝ小な
る幅にて構成され、かつモール体の背面側からは
押圧部によつて押圧、固定されているものである
から、モール体側面は、固定溝に堅く固定され、
成形時におけるモール体表面への樹脂の回り込
み、付着を防止することができる。以上のように
この発明によれば、極めて簡単な工程により外面
美麗な装飾モール体を装着した自動車用バンパが
容易に得ることができる。 As described above, in the manufacturing method according to the present invention, the molding body is fitted or clamped by the fixing groove provided on one side of the bumper mold, and the molding body is pressed by the pressing portion provided on the other side. Since the back surface is pressed and fixed, there is no concern that the molding body will be misaligned due to the flow of molding material such as rubber or synthetic resin during bumper molding. Since it is configured with the same width as S or slightly smaller, and is pressed and fixed from the back side of the molding body by the pressing part, the side surface of the molding body is firmly fixed in the fixing groove,
It is possible to prevent the resin from going around and adhering to the surface of the molding body during molding. As described above, according to the present invention, it is possible to easily obtain an automobile bumper equipped with a decorative molding body having a beautiful outer surface through extremely simple steps.
第１図は、装飾モール体を装着した自動車用弾
性バンパの斜視図、第２図は、装飾モール体の部
分斜視図、第３図は、この発明の一実施例を示す
バンパ成形時の説明図、第４図は、他の実施例の
要部説明図である。
１……バンパ本体、２……モール体、３……化
粧面、４……基体層、５……成形材料、１０，１
１……金型、１２，１２′……突出部、１５……
固定溝、１６……押圧部。
Fig. 1 is a perspective view of an elastic bumper for an automobile equipped with a decorative molding body, Fig. 2 is a partial perspective view of the decorative molding body, and Fig. 3 is an explanation of bumper molding showing an embodiment of the present invention. 4 are explanatory diagrams of main parts of another embodiment. DESCRIPTION OF SYMBOLS 1... Bumper main body, 2... Molding body, 3... Decorative surface, 4... Base layer, 5... Molding material, 10,1
1...Mold, 12, 12'...Protrusion, 15...
Fixing groove, 16...pressing part.
Claims (1)
粧面を備えた装飾モール体の少なくとも前部を嵌
合または挾持する固定溝を設け、他方の型面には
前記装飾体の背面を押圧する押圧部を突設して、
前記固定溝および押圧部によつて前記モール体を
固定保持した後、型面に成形材料を注入して前記
装飾モール体を一体に埋設したバンパを成形する
ことを特徴とする装飾モール体を装着した自動車
用弾性バンパの製造方法。1. A fixing groove for fitting or clamping at least the front part of a decorative molding body having a decorative surface on the front part is provided on one mold surface of the mold for an elastic bumper, and the back surface of the decorative molding body is provided on the other mold surface. By providing a protruding pressing part to press,
After the molding body is fixed and held by the fixing groove and the pressing part, a molding material is injected into the mold surface to form a bumper in which the decorative molding body is integrally embedded. A method for manufacturing an elastic bumper for automobiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14964377A JPS5483239A (en) | 1977-12-13 | 1977-12-13 | Method of making automobile elastic bumper having ornamental lace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14964377A JPS5483239A (en) | 1977-12-13 | 1977-12-13 | Method of making automobile elastic bumper having ornamental lace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5483239A JPS5483239A (en) | 1979-07-03 |
| JPS6114971B2 true JPS6114971B2 (en) | 1986-04-22 |
Family
ID=15479703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14964377A Granted JPS5483239A (en) | 1977-12-13 | 1977-12-13 | Method of making automobile elastic bumper having ornamental lace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5483239A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5757656A (en) * | 1980-09-24 | 1982-04-06 | Kanegafuchi Chemical Ind | Manufacture of metallic foil lined laminated board |
| JPS5757652A (en) * | 1980-09-25 | 1982-04-06 | Kanegafuchi Chemical Ind | Device for continuously manufacturing one surface metallic foil lined laminated plate |
-
1977
- 1977-12-13 JP JP14964377A patent/JPS5483239A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5483239A (en) | 1979-07-03 |
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